Opalized Ammonite Fossil - image 1 of 4

This is a gorgeous Opalized Ammonite Fossil, the perfect size to use as a desk paperweight. Opalized Fossils form in ways similar to other fossils, except that here they are preserved in silica. When the silica solution fills an empty cavity left by a shell or bone that has rotted away – similar to a jelly poured in a mold – it may harden to form an opalized cast of the original object. In this case, just the chambers of the Ammonite Fossil were filled and Opalized leaving a gorgeous array of colors behind.

The subclass Ammonoidea, a group that is often referred to as ammonites, first appeared about 450 million years ago. Ammonoidea includes a more exclusive group called Ammonitida, also known as the true ammonites. These animals are known from the Jurassic Period, from about 200 million years ago.

Specifications -
Item Size: 2.00" L x 1.50" W x 0.625" H
Item Weight: 37 grams

T3 - 3/21 - XFUE - ZV

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Opalized Ammonite Fossil

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